Heirs to their mothers

Heiresses, so far, have been to their fathers. This was because the fathers
had the property.

But some wives who were themselves heiresses had their marriage contracts
drawn up so that their heirs were the heirs of that marriage. Their husband
could have been married before and had many sons, but these sons were not
heirs to the property of the new marriage. The new marriage might only have
had daughters. These daughters would not have been heirs to their father,
that elevated role was for their half-brothers. The daughters were then
heiresses of their mother.

In all other respects, things then happened in the same way as for other
heiresses.